Improvement in thill and pole attachments



- LE'AIVcH. THILL AND POLEAATTACHMEN'IH Patented June 20,1876.

Invenr.

zZ/naam 7M/MM N. PETERS, PHOTD-LITHOGRAPHER, WASHXNGTON. D C.

t. N STATES EDWIN E. LEACH, OF CEDAR RAPIDS, IOWA.

IMPROVEMENT IN THiLL AND POLE ATTAQHMENTS.

Specilication forming part of Letters Patent No. 178,861, dated'J une 20, 1876; application filed To all whom Iit may concern Be it known that I, EDWIN E. LEACH, of Cedar Rapids, in the county ot' Linn and State ot' Iowa, have invented a new and useful Improvement in rIhill and Pole Attachments for Carriages, Agricultural Machines, Sie., which is fully described in the following specification, reference heilig had to the accompanying drawings, in which- Figure 1 represents a side view of the attachment arranged for use as a pole with two horses; Fig. 2, a plan view of the same; Fig. 3, a plan view ofthe attachment arranged as thills for use with one horse only, and Fig. 4 a plan View of the saine invertedl iThe object of my invention is to provide a combined thill and pole attachment, which may be readily adjusted so as to form a pole for use with two horses, or thills for use with one horse.

- which are inclined toward each other, and are united at their forward ends by a bar, C, the whole constituting a hound-frame. The thills l) D are attached to the rea-r bar A by means ot' metallic plates E, which are pivoted to the under side of the bar A at a., and to the rear @uns of the thills D at d. vThe nuns D D are provided with two sets oi' holes, one set, all all,

being near their4 rear ends, and the other, cl2

d2, a little farther forward. The cross-bar C j is pierced with four holes, two of which,e, are y near its outer-ends, and two, c', near its center. When a thill attachment is desired the thills D D are separated from each other and pushed backward until the holes d2 come directly beneath the outside holes c c in the bar G. The metallic plates F, being pivoted to both the bar A and the thills l), will swing back underneath the bar A, and the holes d2 are so arranged that when the thills are in February 17, 1876.

y the position shown in Fig. 3 the plates will be directly underneath the bar A, as seen in Fig. 4. When the thills are in this position suitable bolts are passed through the holes o d2, and properly secured. The plates E are also fastened to the bar A by means of bolts or screws passing through holes e in the plate into the bar.

When it is desired to change the thillsto a pole attachment the bolts are removed from the holes c in the bar C, and from the holes e inthe pivoted plates. The .thills D are then drawn forward, thus straightening out the plates E and bringing the thills togetherat their forward ends, as seen in Fig. 2. They are also very near togethery when they pass under the bar C, and the holes d2 cl2 areA brought directly under the holes c in the bar, and the thills are secured in position by passing suitable bolts through the holes. The forward ends of the thills are also bolted together,

'wise detachable and adjustable, soas to be brought-together and fastened to form apole, substantially as described.

2. The combination, substantially las described, of the thills D, provided with two sets of holes, di d2, the swinging plates E, bar A, and cross-bar C, provided with lrolcs c c', for the purpose set forth.

EDWIN E. LEAGH.

. Witnesses: f

THOMAS G. GoNNoLLY, ULYssEs G. WHITE.l 

